Google launched the Android 4.0 upgrade for the Nexus S last year in Dec but the Nexus S 4G for Dash was strangely eventually left out. A few months ago an Android 4.0.4 ROM launched for it, which made people wish that the formal OTA upgrade would appear soon but that did not happen.

we have another launched ROM for the Nexus S 4G. This one will upgrade your cellphone to Android 4.0.4, providing all the functions that other Nexus S customers have been experiencing for several weeks, along with some upgrades to the WiMAX party, due to the modified baseband.